1,721,063 research outputs found
Mutual Agreement Procedure
No full textIl contributo tratta le questioni legate al procedimento di presentazione dell'istanza di procedura amichevole, le criticità conseguenti e i riflessi sul processo tributarioThe contribution deals with issues related to the procedure for submitting the application for a mutual agreement procedure, the consequent critical issues and the effects on the tax proces
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Variations on the Author
Full text link“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
PARADEIGMATA. Cantieri, tecniche e restauri nel mondo greco d’Occidente (Atti del Convegno di Studi Reggio Calabria, Museo Archeologico Nazionale 5-6 luglio 2023)
No full textIl Convegno si propone come una riflessione aggiornata e condivisa sul cantiere edilizio greco in Magna Grecia e Sicilia. l nuovi indirizzi teorici e metodologici di ricerca nel campo dell’architettura antica e l’accrescimento delle conoscenze archeologiche degli ultimi decenni in questi territori rendono auspicabile una revisione delle acquisizioni consolidate, un aggiornamento sulla base dei nuovi dati, un confronto interdisciplinare tra diversi specialismi: dalla storia dell’architettura antica all’archeologia sul campo, fino alle discipline storiche ed epigrafiche. In particolare, l’incontro mira a mettere a fuoco la complessità del cantiere nel mondo greco D’Occidente, dalle prassi operative ai saperi teorici, dagli aspetti tecnici a quelli economici, dalle committenze alle maestranze, con un’attenzione rivolta sia alla lettura dell’evidenza archeologica, sia all’analisi dei processi storici, sia infine alla discussione dei dati ricavabili dalle fonti letterarie ed epigrafiche. I temi di riflessione sono le fasi operative del cantiere (approvvigionamento dei materiali tra risorse locali e importazioni, trasporto, strumenti e macchine, messa in opera, rifinitura, competenze e prassi operative, percezione visiva), la composizione delle maestranze (le figure coinvolte, l’organizzazione dei lavori, la gerarchia, la dialettica tra maestranze locali e itineranti), la committenza e i costi, le tecniche edilizie e i materiali impiegati (marmo, pietra, bronzo, legno, terracotta ecc.), la manutenzione antica (cura, restauri, trasformazioni, spoliazioni e reimpieghi), la terminologia, gli aspetti giuridici e lo statuto degli edifici antichi e gli esiti del cantier
Folate deficiency is not associated with increased mitochondrial genomic instability: Results from dietary intake and lymphocytic mtDNA 4977-bp deletion in healthy young women in Italy
No full textThe mitochondrial DNA (mtDNA) 4977-bp deletion is a biomarker of mitochondrial genomic instability. It is frequently detected in a number of sporadic diseases, and it accumulates in many tissues during aging. Folic acid plays an important role in the maintenance of genomic stability in mammals. The aim of the present cross-sectional study was to characterise the levels of the mtDNA deletion in the lymphocytes of healthy young women, taking into account folate intake, red blood cell (RBC) folate levels and the distribution of the methylenetetrahydrofolate reductase (MTHFR) gene C677T polymorphism. Folate intake was estimated by a food frequency questionnaire. Determination of the MTHFR C677T polymorphism and of the mtDNA deletion was performed by real-time polymerase chain reaction analysis. A total of 476 women were enrolled. Low levels of deletion were found (mean ?Ct = 1.24). After multivariate analysis, results did not show any significant relationship between age, smoking habits, pregnancy status, nutritional status, inadequate folate intake, folate deficiency, use of folic acid supplements, MTHFR C677T polymorphism and mtDNA 4977-bp deletions. The lack of association between inadequate folate intake, folate deficiency and mitochondrial genomic instability was confirmed also considering reference values of folate based on DNA damage prevention. Our results indicate that mtDNA 4977-bp deletions are maintained at low levels in lymphocytes of young healthy women despite the wide range of variation of folate intakes and folate status. Future studies, carefully designed to address limits and methodological issues related to variation of this biomarker as an effect of different dietary patterns and of folate status, could provide further insight on the specific mechanisms that are acting in lymphocytes of healthy subjects under observed folate intake. © 2014 © The Author 2014. Published by Oxford University Press on behalf of the UK Environmental Mutagen Society. All rights reserved. For permissions, please e-mail: [email protected]
Appropriate Similarity Measures for Author Cocitation Analysis
Full text linkWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
Development, Validation and Preliminary Experiments of a Measuring Technique for Eggs Aging Estimation Based on Pulse Phase Thermography
Full text linkAssessment of the freshness of hen eggs destinated to human consumption is an extremely important goal for the modern food industry and sale chains, as eggs show a rapid natural aging which also depends on the storage conditions. Traditional techniques, such as candling and visual observation, have some practical limitations related to the subjective and qualitative nature of the analysis. The main objective of this paper is to propose a robust and automated approach, based on the use of pulsed phase thermography (PPT) and image processing, that can be used as an effective quality control tool to evaluate the freshness of eggs. As many studies show that the air chamber size is proportional to the egg freshness, the technique relies on the monitoring of the air chamber parameters to infer egg aging over time. The raw and phase infrared images are acquired and then post-processed by a dedicated algorithm which has been designed to automatically measure the size of the air chamber, in terms of normalized area and volume. The robustness of the method is firstly assessed through repeatability and reproducibility tests, which demonstrate that the uncertainty in the measure of the air chamber size never exceeds 5%. Then, an experimental campaign on a larger sample of 30 eggs, equally divided into three size categories (M, L, XL), is conducted. For each egg, the main sizes of the air chamber are measured with the proposed method and their evolution over time is investigated. Results have revealed, for all the egg categories, the existence of an analytic relationship and a high degree of correlation (R-2 > 0.95) between the geometric data of the air chamber and the weight loss, which is a well-known marker of egg aging
High and low intensity facial expressions of emotion and their recognition by adolescents
No full textThe present study, which is part of an ongoing research project on EI skills (founded by CARIPARO foundation), tested a new face database containing Caucasian face images. In particular, since ceiling effects are prominent in various facial emotion recognition tasks, we developed a database that contained faces expressing emotions at different intensities. Nine young adults posed the emotions of happiness, surprise, disgust, sadness, fear, and anger, plus a neutral expression. Encoders were asked to pose ‘normal’ expressions, plus toned-down, minimized expressions. All expressions were later coded using FACS (Ekman, Friesen, & Hager, 2002). On the basis of the FACS intensity levels, pictures were classified in high (prototypical) and low intensity pictures. 278 adolescents (226 females; M age=17) were presented with 32 pictures. Image order was randomized. For each image, participants judged the depicted expression (the expression rating was forced-choice with eight response categories), the intensity, the clarity, the genuineness, the valence and the attractiveness of the expression. Analyses showed that at both high and low intensity level the participants recognized better some expressions (happiness and disgust) than others (fear and anger), F(6,414)=32,35, p<.001. Moreover the high intensity expressions were more accurately recognized than low intensity pictures except for fear expression, (F(5,660)=19,84, p<.001) that was better recognized at low intensities, t(211)=-3,88, p=.002. This result could be explained by an effect of genuineness F(5,645)=13,88, p < .001: compared with allother expressions, the fear expression was judged more genuine at low intensity than at high intensity, t(211)=3,09, p=.002. The results suggested that this new face database could represent an alternative method to test emotions recognition in that it could offer a subtler way to assess this emotional ability
Thermoelastic stress analysis of titanium biomedical spinal cages printed in 3D
Full text linkTransforaminal lumbar interbody fusion(TLIF)cages are employedin lumbosacral spinesurgery. These implants are madein Titanium and offerbiocompatibility,high resistance to corrosionand a good mechanical performance. In the last years, Additive Manufacturing (AM) has been introducedin many biomedical applications, thankstothe possibility ofimprovingcomplex geometry and customization for specific patient. In this regard, compensation of real mechanical behaviour is a critical issueto be investigated. The present work is focused on the evaluationof stress distribution for a 3D printed TLIF cage by means of non-contact measurementsas Thermoelastic Stress Analysis (TSA). A suitable setup has been adopted to guarantee the correct loading applicationand an optical access to the sampl
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